Home / 8,372,631.21-12,550,975.16-2,688,869.72

Finding the Fourth Proportional to 8,372,631.21, 12,550,975.16 and 2,688,869.72

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Solution

The fourth proportional to 8,372,631.21, 12,550,975.16 and 2,688,869.72 is: 4,030,744.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372,631.21 : 12,550,975.16 = 2,688,869.72 : x
  2. Step 2: Convert to fraction form
    8,372,631.21/12,550,975.16 = 2,688,869.72/x
  3. Step 3: Cross multiply
    8,372,631.21x = 12,550,975.16 × 2,688,869.72
  4. Step 4: Simplify right side
    8,372,631.21x = 33,747,936,987,996.93
  5. Step 5: Solve for x
    x = 33,747,936,987,996.93/8,372,631.21
  6. Step 6: Final answer
    x = 4,030,744.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.